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Texas Instruments MC3403DR
- Part No.:
- MC3403DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC3403DR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,807
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Product details
Overview
MC3403DR from Texas Instruments is a quadruple low-power operational amplifier in SOIC-14 package, rated for 0°C to 70°C operation, with ±15 V dual-supply or 3–36 V single-supply capability, 1 MHz unity-gain bandwidth, and 0.6 V/µs slew rate-used in precision signal conditioning and sensor interface circuits.
For engineers reviewing the MC3403DR datasheet, MC3403DR pinout, MC3403DR application, or MC3403DR equivalent, this page delivers verified electrical parameters, thermal resistance (86°C/W), input offset voltage (max 10 mV at 25°C), output swing (VCC– to VCC–1.5 V), and validated alternatives for industrial analog signal chains.
Technical Context
The MC3403DR integrates four independent Class AB op-amps with true differential inputs, internal frequency compensation, and short-circuit protection. Its input bias current is –0.2 µA typical at 25°C, and common-mode input range extends to the negative rail.
It features a low quiescent supply current of 2.8 mA typical per amplifier, rail-to-rail output swing limitation (VCC– to VCC–1.5 V), and 70 dB minimum common-mode rejection ratio-enabling stable DC-coupled amplification in single-supply systems without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 36 V single supply or ±2.5 V to ±15 V dual supply-supports wide-input industrial sensors and battery-powered systems. |
| Unity-Gain Bandwidth | 1 MHz-enables stable closed-loop gain ≥1 configurations up to audio frequencies without external compensation. |
| Slew Rate | 0.6 V/µs-limits large-signal transient response but ensures stability with capacitive loads ≤100 pF. |
| Input Offset Voltage | Max 10 mV at 25°C-defines worst-case DC error in precision gain stages requiring <1% accuracy. |
| Common-Mode Input Range | VCC– to (VCC+ – 2 V)-allows direct sensing of signals referenced to ground in single-supply configurations. |
| Output Voltage Swing | VCC– to (VCC+ – 1.5 V) at RL = 2 kΩ-delivers usable dynamic range near ground but not true rail-to-rail output. |
| Thermal Resistance θJA | 86°C/W (SOIC-D package)-dictates maximum power dissipation (≤350 mW) before exceeding 70°C junction temperature. |
Pinout & Package
MC3403DR is housed in a 14-pin SOIC (D) package, 8.75 mm × 4.0 mm footprint, 1.75 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1, tape-and-reel packaging (2500 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output-drives feedback network or load; limited to VCC– to VCC+–1.5 V swing. |
| 2 | 1IN– | Inverting input of Amp A-high-impedance node; bias current –0.2 µA affects high-Z source matching. |
| 3 | 1IN+ | Non-inverting input of Amp A-common-mode range includes VCC–, enabling ground-referenced inputs. |
| 4 | VCC– | Negative supply rail-shared by all four amplifiers; must be stable and low-impedance. |
| 5 | 2IN+ | Non-inverting input of Amp B-identical electrical behavior to Pin 3; supports independent channel routing. |
| 6 | 2IN– | Inverting input of Amp B-matches Pin 2 characteristics; enables matched differential pair implementation. |
| 7 | 2OUT | Amplifier B output-electrically identical to Pin 1; no crosstalk penalty above 120 dB at 1–20 kHz. |
| 8 | 3OUT | Amplifier C output-same drive capability and voltage limits as Pins 1 and 7. |
| 9 | 3IN– | Inverting input of Amp C-bias current and offset specs apply uniformly across all four channels. |
| 10 | 3IN+ | Non-inverting input of Amp C-supports multi-channel instrumentation front-ends with shared reference. |
| 11 | VCC+ | Positive supply rail-powers all amplifiers; total ICC ≤7 mA at 25°C under no-load conditions. |
| 12 | 4IN+ | Non-inverting input of Amp D-enables quad-channel signal processing without external multiplexing. |
| 13 | 4IN– | Inverting input of Amp D-identical input impedance and offset behavior to other inverting inputs. |
| 14 | 4OUT | Amplifier D output-fully independent; phase margin ≥60° ensures stability with 2 kΩ || 200 pF load. |
Key Features
| Feature | Design Value |
|---|---|
| Low Power Consumption | 2.8 mA typical total supply current-reduces thermal load and enables use in space-constrained or thermally sensitive PCB layouts. |
| Single-Supply Operation | 3 V to 36 V range with rail-inclusive common-mode input-eliminates need for dual supplies in sensor signal conditioning. |
| Internal Frequency Compensation | Unity-gain stable without external components-simplifies design and reduces BOM count for basic amplifier configurations. |
| Short-Circuit Protection | ±45 mA output current limit-prevents device destruction during accidental output shorts or capacitive overload. |
| Interchangeability | Pin- and function-compatible with µA741 and Motorola MC3303/MC3403-enables drop-in replacement in legacy designs. |
Applications
| Industrial Sensor Signal Conditioning | DC Motor Speed Control Feedback |
|---|---|
|
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or strain gauges in PLC analog input modules. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous gain, filtering, and level-shifting for four independent sensor channels. Use Value: Input bias current ≤0.5 µA avoids loading high-impedance sensors; 10 mV max VIO maintains <0.1% measurement accuracy over 0–70°C. |
Use Scenario: Converting tachometer pulses or back-EMF voltage into proportional speed feedback for closed-loop motor control. IC Role / Device Role / Timing Role: One amplifier acts as comparator for zero-crossing detection; others condition analog feedback signals. Use Value: 1 MHz bandwidth supports accurate RPM measurement up to 60 kHz; short-circuit protection prevents latch-up during motor stall events. |
| Audio Pre-Amplification Stage | Power Supply Monitoring Circuit |
|
Use Scenario: Boosting microphone or line-level signals prior to ADC sampling in embedded voice recorders or intercom systems. IC Role / Device Role / Timing Role: Single amplifier configured as non-inverting gain stage; remaining three unused or reserved for future expansion. Use Value: 70 dB CMRR rejects AC mains noise; 0.6 V/µs slew rate avoids distortion on 1 kHz sine waves at full scale. |
Use Scenario: Comparing regulated rail voltages (e.g., 3.3 V, 5 V, 12 V) against precision references to trigger fault alerts in telecom power systems. IC Role / Device Role / Timing Role: Three amplifiers used as comparators; fourth buffers reference voltage for consistent trip thresholds. Use Value: Input offset voltage ≤10 mV ensures ±1% voltage monitoring tolerance; VCC–-to-rail input allows direct connection to monitored rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DR | Higher input offset voltage (7 mV typ vs. 2 mV typ for MC3403DR), wider temp range (–40°C to 125°C), same SOIC-14 package. | LM324DR supports automotive-grade extended temperature operation; MC3403DR offers tighter VIO spec at room temperature. | Select LM324DR for harsh-environment deployments; choose MC3403DR when lower initial DC error is critical in commercial-grade systems. |
| TL074CDR | JFET-input architecture (IB ≈ 65 pA vs. –0.2 µA), higher slew rate (13 V/µs), higher GBP (3 MHz), but requires ≥±5 V supplies. | TL074CDR suits high-speed, low-noise audio paths; MC3403DR better fits low-voltage single-supply sensor interfaces. | Use TL074CDR where input impedance >10⁹ Ω is mandatory; retain MC3403DR for 3 V–36 V flexibility and cost-sensitive industrial designs. |
Compared with LM324DR and TL074CDR, the MC3403DR delivers optimal trade-off between supply voltage range, input offset accuracy, and thermal performance in commercial-temperature analog signal chains-without requiring layout changes or external compensation.
Availability
MC3403DR is available at Aetrix Electronics and suitable for industrial sensor conditioning, motor control feedback loops, audio pre-amplification, and power supply monitoring requiring stable component supply and long-term obsolescence management.
Supply support for MC3403DR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of experience in precision op-amp design and manufacturing.
The MC3403DR belongs to TI's legacy low-power op-amp product line, engineered for robustness, wide supply flexibility, and interchangeability in industrial analog signal conditioning applications.
FAQ
What is the operating temperature range for the MC3403DR?
The MC3403DR is characterized for operation from 0°C to 70°C ambient temperature. This commercial-grade rating distinguishes it from the MC3303 variant, which operates from –40°C to 85°C. The MC3403DR's specifications-including input offset voltage, bias current, and output swing-are guaranteed within this range, making it suitable for indoor industrial equipment and consumer electronics where ambient extremes are controlled.
Does the MC3403DR support single-supply operation?
Yes, the MC3403DR supports true single-supply operation from 3 V to 36 V. Its common-mode input voltage range extends to the negative supply rail (VCC–), and its output swings from VCC– to VCC+ – 1.5 V. This enables direct interfacing with ground-referenced sensors and eliminates the need for dual supplies or level-shifting circuitry in many analog front-end designs.
What is the pin configuration of the MC3403DR?
The MC3403DR uses a standard 14-pin SOIC (D) package with pin 1 designated as the output of amplifier A (1OUT). The layout follows industry-standard quad op-amp ordering: pins 1–7 cover Amp A–B outputs and inputs, pin 4 is VCC–, pin 11 is VCC+, and pins 8–14 serve Amp C–D. Full pin mapping is confirmed in TI's SLOS101C datasheet Figure 1 (top view).
How does the MC3403DR compare to the µA741 in terms of power consumption?
The MC3403DR draws less than half the quiescent supply current of the µA741-2.8 mA typical versus ~5 mA for the µA741. This reduction lowers thermal dissipation and improves efficiency in multi-channel or battery-powered systems. Additionally, the MC3403DR achieves this while maintaining comparable gain-bandwidth and input offset performance, making it a direct low-power upgrade path.
Is the MC3403DR pin-compatible with other members of the MC3303/MC3403 family?
Yes, the MC3403DR is fully pin-compatible with MC3303D, MC3403N, and MC3403NSR-all share identical 14-pin SOIC, PDIP, or SOP footprints and pin functions. Electrical differences (e.g., temperature range, input offset voltage) do not affect physical layout or PCB footprint, allowing seamless substitution where environmental or precision requirements align.
MC3403DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 2.8mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC3403DR FAQ
1.How can I place an order for MC3403DR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC3403DR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC3403DR reliable?
The price and inventory of MC3403DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC3403DR is usually 5 days.
3.What payment methods are accepted for MC3403DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC3403DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC3403DR?
MC3403DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC3403DR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC3403DR?
For technical support, including MC3403DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC3403DR requirements.
6.How does Aetrix verify that MC3403DR is sourced from the original manufacturer or authorized distributors?
All MC3403DR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC3403DR meets industry standards.
7.What is the process for return or replacement of MC3403DR?
All MC3403DR units undergo pre-shipment inspection (PSI). If there is an issue with MC3403DR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC3403DR part is unused and in its original packaging.
Return procedure for MC3403DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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